The Rancho Seco Nuclear Generating plant is a decommissioned nuclear power plant near Sacramento, California. The plant was only in operation for fourteen years (1975-1989) before it closed due to public vote.

The Rancho Seco Nuclear Generating Plant in Herald, California is a decommissioned power plant that began operation in 1975. The plant stayed in operation until 1989, when it was closed due to public vote.

During operation, the plant produced almost 500 spent nuclear fuel assemblies measuring 8.5" x 12ft and radioactive in nature.